287268946 has 16 divisors (see below), whose sum is σ = 434929176. Its totient is φ = 142299136.

The previous prime is 287268899. The next prime is 287268953. The reversal of 287268946 is 649862782.

It can be written as a sum of positive squares in 4 ways, for example, as 286794225 + 474721 = 16935^2 + 689^2 .

It is a junction number, because it is equal to n+sod(n) for n = 287268893 and 287268902.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99840 + ... + 102676.

Almost surely, 2^287268946 is an apocalyptic number.

287268946 is a deficient number, since it is larger than the sum of its proper divisors (147660230).

287268946 is a wasteful number, since it uses less digits than its factorization.

287268946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3293.

The product of its digits is 2322432, while the sum is 52.

The square root of 287268946 is about 16949.0101775885. The cubic root of 287268946 is about 659.8262061530.

The spelling of 287268946 in words is "two hundred eighty-seven million, two hundred sixty-eight thousand, nine hundred forty-six".